Pulp-separator.



N0. 706,44l. Patented Aug. 5, I902.

' J. K. McLAUGHLIN.

PULP SEPARATOB.

(Application filed Oct. 4, 1901.)

(No Model.)

2 Sheets-Sheet I. 2

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No. 706,441. Patented Aug. 5, I902.

' .1. K. MBLAUGHLIN.

BULP SEPABATUR.

(Application filed Oct. 4, 1901.)

(No Model.) 2 Shaets-Sheet 2.

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UNITED STATES PAT NT OFFICE.

JEREMIAH K. MCLAUGHLIN, OF AUSABLE FORKS, NEW YORK.

PU LP-S EPARATO R.

SPECIFICATION forming part of Letters Patent No. 706,441, dated August5, 1902.

Application filed October 4, 1901. Serial-No. 77,564- (No model.)

To all, w/wm it may concern:

Be it known that I, JEREMIAH K. M OLAUGH- LIN, a citizen of the UnitedStates, and a resident of Ausable Forks, in the county of Essex andState of New York, have invented a new and Improved Separator forPulp-Mills, of which the followingis 'a full, clear, and eX-' actdescription.

The invention relates to the manufacture of wood-pulp by the sulfidprocess; and .its

object is to provide a new and improved separator for pulp-mills whichissimple and durable in construction, very eii'ective in operation, andarranged to insure a quick and thor-- ough separation of the stock fromthe acid.

The invention consists of novel features and parts andcombinationsofthesame as will be fully described hereinafter andthenpointed out in the claims.

A practical embodiment of the invention is represented in theaccompanyingdrawings, forming a part of this specification, in whichsimilar characters of reference indicate corresponding parrsin both theviews.

Fig. 1.

In a suitably-constructed tank or vat A is mounted to rotate a screen B,preferably funnel-shaped and securedby spiders 13'13 to a verticalshaft-O, journaled at its lower end in a step 1) and near its upper endin a hearing D, secured to a bridge-tree D as. indicated in Fig. 2. Theupper end of the shaft 0 is connected by a gearing E or other means withsuitable machinery. for imp'arting a lo tary motion to the shaft 0 torevolve the screen B within the tank A at a desired rate of speed. Thepulp to be treated passes from the digester and the chute F into theupper end of the screen B, the meshes of which are sufficiently fine toprevent the stock from :a suitable receptacle. ,the screen B from beingblocked up by thetors are secured to the shaft 0, so as to rotate withthe same andthe screen B to cause the deflectors to throw the stock and:acid out-f ward against-the screenwto insure a proper separation ofthestock from the acid, the;lat-

ter passing through the meshes into the tank A,jwhi1e thestock passesdownward through the apex endof thescreen' into the circular ahead 11 ofthedischarge-pipe H, leading to.

the outside of the tank A, to carry off the stock after the same isseparated from the acid.

The acid which accumulates in the tank A passes from the latter throughan outlet I to stock, I provide a washing device, located exteriorly ofthe screen, preferably in the shape of'apipe J, connected with asuitable source of..wate1 -supply and having perforations adjacent tothe. peripheral surface of the screen -B, so that the water passes infinejets through thesaid perforations onto the screen to force Figure'lis a plan View of, theimprovement. with partbroken out, and Fig. 2 is asectional side elevation of the same on the line 2 2 of the stockthat-collects on the inside of the screen back to the interior thereof,so as to keepthe meshes clean for the free escape of v the acid.

In order to prevent theacid from passing into the head 11, I provide thelower spider. B with a circular cap 13 extending over, the head H, asclearly indicated in Fig. I i I In order to prevent It is understoodthat by having-the deflectors G arranged as described the acid is at alltimes directed downwardly and outwardly'to the sides of the screen, sothat a;thorough separation of the stock from the acidtakes place.

The shaft 0 is made hollow and connected with asuitable water-supply,and the Wall of the shaft is perforated from the top of the second disk,so that the water in the pipe passes onto the disks and washes the acidfrom the stock as it passes down the screen.

Having thus described my invention, I claim as new and desire to secureby Letters Patent i I. v

1. In a separator of the class described, the combination of a vertical;shaft, a "funnelshaped screen revoluble withfsaid shaftnand successivelysmaller deflectors carried by said openings, a r'evolnblescreen, meansfor feed ing pulp to the upper end of the screen, and a series ofconical deflectors mounted on the shaft and disposed in the path of thepulp discharged by the feed mechanism, said deflectors adapted to beflushed by jets from the shaft-openings. p

' 4. A separator of the class described, comprising a tank having anacid-outlet, a fun- Bel-shaped screen mounted to rotate on a verticalaxis, an outlet communicating with the apex end of said screen, and aplurality of conical deflectors arranged within said screen and havingtheir active surfaces inclined in opposite directions to the taper ofthe screen.

5. A separator of the class described, comprising a tank having anacid-outlet, a funnel-shaped screen mounted within said tank and adaptedto rotate on a vertical axis, a pulp-outlet connected with the apex endof the screen, means for feeding pulp to the upper end of said screen,and deflectors mounted within and revoluble with said screen, saiddeflectors having their active surfaces inclined in opposite directionsto the taper of the screen.

6. A separator of the class described, comprising a tank having anacid-outlet, afunnel-shaped screen mounted to rotate on a vertical axisand within said tank, a pipe proapex end of the screen and extendingover the open end of said head, and a series of conical deflectorsmounted within said screen and having their active surfaces inclined inan opposite direction to the taper of the screen.

7. A separator of the class described, comprising a tank, a Verticalhollow shaft provided with jet-openings, a funnel-shaped screenrevoluble on a vertical axis, and conical deflectors carried by saidshaft and disposed adjacent to said jet-openings, said deflectors havingtheir active surfaces inclined inwardly from the surface of the screen.

' 8. A separator of the class described, comprising a perforatedvertical shaft, a funnelshaped screen mounted on said shaft, and conicaldeflectors mounted within the screen and disposed in the path of thejets from said perforated shaft, said deflectors having their activesurfaces inclined in opposite directions to the taper of the screen.

9. A separator of the class described, comprisinga tank, a funnel-shapedscreen mounted to rotate on a vertical axis and within said tank, meansfor feeding pulp into the upper end of the screen, means for collectingpulp at the foot of the screen, a series of conical deflectors disposedwithin the screen and having their active surfaces inclined in oppositedirections to the taper of the screen, and an inclined perforated pipedisposed outside of the screen and adjacent to the surface thereof, asand for the purposes described.

In testimony whereof I have signed my name to this specification in thepresence of two witnesses.

JEREMIAH K. MOLAUGHLIN.

'Witnesses:

WILLIAM CADIGAN, HENRY W. CARTER.

